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shi you he tian ran qi gong ye guan xian shu song xi tong yong quan han jie qiu fa biao zhun bian zhi yu fen xi
Author(s): 
Pages: 33-34+41
Year: Issue:  3
Journal: Valve

Keyword:  全焊接球阀标准制定天然气管线输送;
Abstract: 介绍了《石油和天然气工业管线输送系统用全焊接球阀》国家标准制定的目的、原则和结构内容。
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